AP Biology
Ch 1 Properties of Life and 5 Assumptions of Darwin
Properties of Life
1. Order
2. Reproduction
3. Growth and Development
4. Energy Utilization
5. Response to the environment
6. Homeostasis
7. Evolutionary Adaptation
Darwin’s Five Assumptions
1. Many more individuals are born in each generation than will
survive & reproduce
2. There is variation among individuals; they are not identical in
all their characteristics
3. Individuals with certain characteristics have a better chance
of surviving and reproducing than individuals with other
characteristics
4. Some of the characteristics resulting in differential survival
and reproduction are heritable
5. Vast spans of time have been available for change
Darwin used the term “descent with modification” instead of
evolution. Darwin vs Lamarck – giraffe example.
Classification hierarchy for man
1. Kingdom Animalia
2. Phylum Chordata
3. Class
Mammalia
4. Order
Primata
5. Family
Hominidae
6. Genus
Homo
7. Species Homo sapiens